A population is made up of r disjoint subgroups. Let Pi denote the proportion of the population that is in subgroup i, i = 1,.... r. If the average weight of the members of subgroup i is Wi,i = 1,... ,r, what is the average weight of the members of the population?
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.